Method for positioning of equipment

ABSTRACT

Methods for the positioning of equipment are disclosed. One method of the present disclosure can include substantially aligning an equipment support structure with an equipment fixture point of a casing structure; adjusting the equipment support structure to have a selected height and a selected angle; sliding the equipment support structure across a platform having the selected height and the selected angle to reach the equipment fixture point; and coupling a piece of equipment to one of the equipment support structure and the equipment fixture point.

BACKGROUND OF THE INVENTION

Embodiments of the present disclosure relate generally to apparatuses,systems, and methods for positioning pieces of equipment. Morespecifically, the present disclosure relates to the positioning (e.g.,installation and removal) of heavy equipment, such as complex gasturbine combustors. Turbomachines (e.g., gas turbines) may includecombustor units, also known as “combustors.” Combustor units arechambers which typically receive high pressure air from a compressionsystem of a gas turbine. In the combustor, fuel is introduced andignited to significantly heat the air. The hot gases are then directedinto the first stage nozzle and turbine, where power can be extracted.Stationary power generation gas turbines have become larger and moreefficient as technologies and materials have improved. Larger powergeneration needs and the drive for ever improving efficiency has led tothe development of larger and more complex gas turbines. In turn,turbine components such as compressors, combustors and turbine casingshave become larger and more complex. Given the large capital cost ofthese components, it is crucial to handle them safely and efficientlywithout causing damage. Combustion system complexity is driven by theneed to meet stringent exhaust emissions requirements, which imposeadditional component hardware constraints (multiple fuel manifolds,multiple nozzles, high pressure seals, air shields etc.) that makehandling difficult, and damage prevention imperative.

FIG. 1 shows a cross-sectional view of a conventional turbine assemblyT. Combustors T1, connected to fuel nozzles T2, are typically locatedbetween the compressor T3 and turbine T4 sections of turbine assembly T.Air T5 flows sequentially through compressor T3, combustor T1, andlastly through turbine T4. In axial flow compressor designs, combustorsT3 are often oriented circumferentially around the central rotor and aresometimes canted to minimize overall axial turbine length. Combustors T1oriented toward the upper face of turbine assembly T can be installedand removed with the aid of mechanical arms, cranes, and similar toolsfor positioning equipment. Pieces of equipment (e.g., combustors T1) andequipment fixture points oriented toward the lower half of a machine(i.e., below the centerline) may not be accessible, however, withconventional equipment positioning tools such as overhead cranes. Othermachines besides gas turbines (e.g., turbine assembly T) may feature asimilar arrangement of heavy components, and therefore may have similarlimitations. Manual positioning of equipment, as an alternative to usinga conventional crane or mechanical device, may not be possible where theequipment to be positioned is very heavy or large (e.g., combustor T1 ofa complex gas turbine combustor).

BRIEF DESCRIPTION OF THE INVENTION

At least one embodiment of the present disclosure is described hereinwith reference to the positioning of equipment, such as gas turbinecombustors. However, it should be apparent to those skilled in the artand guided by the teachings herein that embodiments of the presentinvention are applicable to any scenario in which equipment fixturepoints are inaccessible to conventional overhead (top-down oriented)apparatuses and systems.

A first aspect of the present disclosure provides an apparatusincluding: a height adjustable table; a platform coupled to the heightadjustable table; a tilt adjuster coupled to the platform, the tiltadjuster being configured to tilt the platform relative to the heightadjustable table; an equipment support structure slidably connected tothe platform, the equipment support structure being configured tosupport a piece of equipment; a drive mechanism coupled to the platformand configured to slidably move the equipment support structure acrossthe platform; and a bracket coupled to the equipment support structure,wherein the bracket is configured to removably attach the piece ofequipment.

A second aspect of the present disclosure provides a system including: ascaffold having a raised surface; a height adjustable table slidablyconnected to and positioned above the raised surface of the scaffold; aplatform coupled to and positioned above the height adjustable table,the platform having a guide rail thereon; a tilt adjuster coupled to theplatform, the tilt adjuster being configured to tilt the platformrelative to the height adjustable table; an equipment support structurepositioned above the platform and slidably connected to the guide rail;a drive mechanism configured to slidably move the equipment supportstructure across the guide rail of the platform; and a bracket coupledto the equipment support structure, wherein the bracket is configured toremovably attach a piece of equipment.

A third aspect of the present disclosure provides a system including: ascaffold having a raised surface; a height adjustable table slidablyconnected to and positioned above the raised surface of the scaffold; anarm support structure coupled to and positioned above the heightadjustable table; a length adjustable arm slidably connected to the armsupport structure; and an equipment support bracket coupled to thelength adjustable arm, wherein the equipment support bracket furthercomprises: a bracket body; and a rotatable member rotatably coupled tothe bracket body for removably attaching a piece of equipment; whereinthe bracket body is further configured to lock to the rotatable memberin an angular orientation.

A fourth aspect of the present disclosure provides a method including:substantially aligning an equipment support structure with an equipmentfixture point of a casing structure; adjusting the equipment supportstructure to have a selected height and a selected angle; sliding theequipment support structure across a platform having the selected heightand the selected angle to reach the equipment fixture point; andcoupling a piece of equipment to one of the equipment support structureand the equipment fixture point.

A fifth aspect of the present disclosure provides a method including:substantially aligning a rotatable equipment support bracket of asuspended bracket member with an equipment fixture point of a casingstructure; affixing a counterweight to one of the rotatable equipmentsupport bracket and the suspended bracket member; moving the rotatableequipment support bracket to a selected rotational position; contactingthe equipment fixture point with the rotatable equipment supportbracket; and coupling a piece of equipment to one of the rotatableequipment support bracket and the equipment fixture point.

A sixth aspect of the present disclosure provides a method including:substantially aligning an arm, having a rotatable equipment supportbracket, with an equipment fixture point of a casing structure;adjusting the arm to have a selected height and a selected angle;contacting the equipment fixture point with the rotatable equipmentsupport bracket; and coupling a piece of equipment to one of therotatable equipment support bracket and the equipment fixture point.

BRIEF DESCRIPTION OF THE DRAWING

These and other features of the disclosed apparatus will be more readilyunderstood from the following detailed description of the variousaspects of the apparatus taken in conjunction with the accompanyingdrawings that depict various embodiments of the invention, in which:

FIG. 1 is a cross sectional view of a conventional turbine assembly.

FIG. 2 is a perspective view of an apparatus, system, and piece ofequipment according to an embodiment of the present disclosure.

FIG. 3 is a perspective view of an apparatus and system according to anembodiment of the present disclosure.

FIG. 4 is another perspective view of an apparatus, system, and piece ofequipment according to an embodiment of the present disclosure.

FIG. 5 is a perspective view of a bracket according to an embodiment ofthe present disclosure.

FIG. 6 is a perspective view of an apparatus being used in a methodaccording to an embodiment of the present disclosure.

FIG. 7 is a perspective view of a suspended bracket member according toan embodiment of the present disclosure.

FIG. 8 is a perspective view of a suspended bracket member coupled to apiece of equipment according to an embodiment of the present disclosure.

FIG. 9 is a perspective view of a suspended bracket member being used ina method according to an embodiment of the present disclosure.

FIG. 10 is a perspective view of another system and apparatus with apiece of equipment according to an embodiment of the present disclosure.

FIG. 11 is a perspective view of a system and apparatus according to anembodiment of the present disclosure.

FIG. 12 is a perspective view of a system being used in a methodaccording to an embodiment of the present disclosure.

It is noted that the drawings are not necessarily to scale. The drawingsare intended to depict only typical aspects of the disclosure, andtherefore should not be considered as limiting its scope. In thedrawings, like numbering represents like elements between the drawings.

DETAILED DESCRIPTION OF THE INVENTION

In the following description, reference is made to the accompanyingdrawings that form a part thereof, and in which is shown by way ofillustration specific exemplary embodiments in which the presentteachings may be practiced. These embodiments are described insufficient detail to enable those skilled in the art to practice thepresent teachings and it is to be understood that other embodiments maybe used and that changes may be made without departing from the scope ofthe present teachings. The following description is, therefore, merelyexemplary.

When an element or layer is referred to as being “on,” “engaged to,”“disengaged from,” “connected to” or “coupled to” another element orlayer, it may be directly on, engaged, connected or coupled to the otherelement or layer, or intervening elements or layers may be present. Incontrast, when an element is referred to as being “directly on,”“directly engaged to,” “directly connected to” or “directly coupled to”another element or layer, there may be no intervening elements or layerspresent. Other words used to describe the relationship between elementsshould be interpreted in a like fashion (e.g., “between” versus“directly between,” “adjacent” versus “directly adjacent,” etc.). Asused herein, the term “and/or” includes any and all combinations of oneor more of the associated listed items.

Embodiments of the present disclosure include apparatuses, systems forpositioning (e.g., installing and removing) equipment, and to methods ofdoing the same. In FIG. 2, an apparatus 2 according to an embodiment ofthe disclosure is shown. Apparatus 2 can position pieces of equipment 4configured for use with an equipment fixture point 6. Equipment fixturepoint 6 can be located on a larger structure, e.g., a turbine casing 8(shown in FIG. 2 in a partial cutaway view). In particular, apparatus 2can position equipment 4 at an equipment fixture point 6 inaccessible toconventional overhead devices, such as cranes, which may be orienteddownward and/or obstructed by another body such as turbine casing 8.

Though apparatuses, systems, and methods of the present disclosure aredescribed herein with reference to turbine casing 8, it is understoodthat the present disclosure may also be applicable to other situationsinvolving, for example, large removable pieces of equipment which aredifficult or impossible to access with overhead positioning equipment,e.g., cranes. Apparatus 2 can orient equipment 4 in an upwards, angulardirection to align equipment 4 with equipment fixture point 6, asdiscussed herein. Other embodiments of the present disclosure include asystem 10 for positioning equipment 4, of which an embodiment ofapparatus 2 can be a component. In FIGS. 2-12, an example set of axes X,Y, and Z are provided for the sake of clarity and demonstration. Varioustypes of movement relative to each axis X, Y, and Z are discussed toillustrate the various types of movement provided herein. However, it isfurther understood that embodiments of the present disclosure caninclude reorienting any given reference axis to thereby adapt to varioussituations and design needs.

In addition to positioning equipment 4, several structures of apparatus2 can support and/or move equipment 4. In FIG. 2, apparatus 2 is shownby example to be coupled, at its base, to a height adjustable table 20.Height adjustable table 20 can be moved upwards and downwards to adjustthe vertical position of equipment 4 and/or other components locatedabove height adjustable table 20. A platform 22 can be coupled to (e.g.,directly above) height adjustable table 20, and thus may be raised orlowered along with height adjustable table 20. An equipment supportstructure 24 may be coupled to the surface of platform 22, and is shownby example herein as being substantially in the form of an “L” bracketsupporting equipment 4. Although equipment support structure 24 is shownby example to support equipment 4 in a cantilevered manner, equipmentsupport structure 24 can also extend forward to support equipment 4 ator near its center of gravity. The portion of equipment supportstructure 24 used to contact equipment 4 can have a cross sectional areaof the same or similar size as equipment 4 to create a point of couplingto apparatus 2. In some embodiments, equipment support structure 24 canbe slidably coupled to the surface of platform 22, e.g., with one ormore guide rails 48 (FIG. 3) allowing equipment support structure 24 tomove across the surface of platform 22. In addition to rails, slidablecoupling between equipment support structure 24 and platform 22 can beprovided through, e.g., dovetails, magnetic contact, mechanicallyadjustable gears, rotatable couplings, and other forms of couplingcapable of allowing one component to slide relative to another, whethercurrently known or later developed. In addition, various other slidablecomponents discussed herein can additionally or alternatively beprovided in the form of any form of slidable coupling discussed herein,in addition to others currently known or later developed.

As also shown in FIG. 2, embodiments of the present disclosure caninclude a system 10 for positioning equipment 4. Embodiments of thepresent disclosure can safely and efficiently position (e.g., installand remove) equipment 4 with a mass of, for example, up to approximatelyone thousand kilograms. One or more components of system 10 can becomposed of a material capable of supporting large masses andcomponents, e.g., structural steel. Components of system 10 discussedherein can and also include various lifts, drive mechanisms, rails,bolts, brackets, etc. made from similar or stronger materials to supportthe mass and weight of the equipment being positioned. System 10 caninclude other structural components designed to move apparatus 2 andequipment 4. In an embodiment, system 10 can include a scaffold 30 witha raised surface 32, to which apparatus 2 can be coupled. In anembodiment, a guide track 34 can slidably connect apparatus 2 to raisedsurface 32 of scaffold 30. Through guide track 34, apparatus 2 can moveacross raised surface 32 of scaffold 30. In addition, height adjustablemembers 36 of scaffold 30 can further adjust the height of equipment 4and apparatus 2.

Turning to FIG. 3, an embodiment of apparatus 2 and system 10 is shownin detail. Motion of apparatus 2 (including height adjustable table 20)along the direction of arrow A is possible, e.g., by apparatus 2 beingslidably connected to raised surface 32 of scaffold 30. Apparatus 2 canalso be moved vertically through the use of height adjustable members 36of scaffold 30. Height adjustable members 36 can include mechanicallatches, stops, and similar structures configured to interconnect withscaffold 30 of system 10, allowing or prohibiting movement of scaffold30 and raised surface 32 along the direction of arrow B. Heightadjustable table 20 can be set to different heights with a heightadjustment mechanism 40, shown by example in FIG. 3 as being in the formof a scissor lift. In other embodiments, height adjustment mechanism 40can include, for example, a jackscrew, a hydraulic lift, and/or apneumatic lift. Height adjustment mechanism 40 can allow heightadjustable table 20 to vertically extend and retract along the directionof arrow C. As shown by example in FIG. 3, the position of heightadjustment mechanism 40 can directly affect the height of platform 22.

A tilt adjuster 42 can be coupled to platform 22, and may be in the formof a tilting mechanical connection such as, for example, a largeindustrial hinge or mechanically adjustable incline capable of tiltingalong the direction of arrow D. If desired, tilt adjuster 42 may bepowered by an external source (not shown), e.g., an electric, hydraulic,or pneumatic motor or manual geared screw adjustment. In an embodiment,a tilt support member (not shown) can be coupled between heightadjustable table 20 and platform 22. Tilt adjuster 42 can thus allowplatform 22 to be adjustably moved to several angular positions.

To move equipment support structure 24 across the surface of platform22, a drive mechanism 46 can be coupled (e.g., mechanically,pneumatically, hydraulically, or electrically) to equipment supportstructure 24. Further, drive mechanism 46 can be positioned on heightadjustable table 20, platform 22, equipment support structure 24, oranother component of apparatus 2. As shown by example in FIG. 3, drivemechanism 46 can be a linear actuator connected to equipment supportstructure 24 with a threaded drive rod, allowing equipment supportstructure 24 to move along the direction of arrow E. In otherembodiments, drive mechanism 46 can be a threaded rod, a piston, and/ora rail capable of moving substantially along guide rails 48, e.g., alongthe direction of arrow E. For example, a threaded rod can move acrossplatform 22 by being actuated, and this movement can apply a forceequipment support structure 24 along the direction of desired movement,e.g., along arrow E. To provide sliding movement of equipment supportstructure 24 across platform 22, a guide rail 48 can be attached toplatform 22. Equipment support structure 24 can travel across guide rail48 in response to forces imparted from drive mechanism 46, allowing thelocation of equipment support structure 24 to be adjusted.

A bracket 50 can project from equipment support structure 24 ofapparatus 2. Bracket 50 can removably attach equipment 4 (FIG. 2) toapparatus 2 in each embodiment discussed herein. Bracket 50 may berotatably adjusted along the direction of arrow F to be positioned indifferent angular orientations as discussed elsewhere herein. Inaddition, bracket 50 can rotate equipment 4 attached thereto (FIG. 2)about a centerline axis 51 of equipment support structure 24 and/orequipment 4 (FIG. 2). Additionally or alternatively, equipment supportstructure 24 can be configured to removably attach a forward end flange58 (shown in FIG. 4) of equipment 4 (FIG. 2). An aligner 52 may also becoupled to apparatus 2, e.g., on platform 22, allowing a user ofapparatus 2 to align equipment support structure 24 or bracket 50 withequipment 4 (FIG. 2). Generally, aligner 52 may be a measuring devicesuch as an optical measuring device, a mechanical measuring device, anangular measuring device, or similar apparatus used to indicate anorientation or position. Aligner 52 can indicate a path of alignmentbetween apparatus 2 and equipment fixture point 6 (FIG. 2).

Turning to FIG. 4, another view of apparatus 2 and system 10 is shown.An adjustable hatch 53, dimensioned to allow passage of equipment 4, canbe located on raised surface 32 of scaffold 30. If desired, additionalguide tracks (not shown) can extend across the upper face of hatch 53,allowing apparatus 2 to be positioned above the closed hatch 53 ifdesired. Adjustable hatch 53 can be opened and closed during thepositioning of equipment 4. For example, equipment 4 can be detachedfrom equipment support structure 24 and loaded onto a mechanical arm,such as a crane, and then passed through adjustable hatch 53. It is alsounderstood that these steps can also occur in a different or evenopposite order.

To move apparatus 2 across scaffold 30 via guide track 34, a guide trackdrive mechanism 54 can be mechanically, hydraulically, pneumatically, orelectrically coupled to height adjustable table 40. Guide track drivemechanism 54, similar to drive mechanism 46, can impart a force toheight adjustable table 20 to cause movement, e.g., substantially withinthe X-Z plane. As an example, guide track drive mechanism 54 can be inthe form of a linear actuator as shown in FIG. 4. In other embodiments,guide track drive mechanism 54 can be a threaded rod, a piston, and/or arail. A rotatable coupler 56 can vertically couple platform 22 (andequipment support structure 24 as shown in FIG. 4) with heightadjustable table 20. Rotatable coupler 56 can permit platform 22 and anycomponents located thereon to “swivel” or rotate along the direction ofarrow G. Equipment support structure 24 can be connected to a forwardend flange 58 of equipment 4. Forward end flange 58 may be, for example,a ring projecting circumferentially from one end of equipment 4, whichcan be used to engage equipment support structure 24. In addition,forward end flange 58 can serve other structural purposes, e.g., actingas a surface of contact with other components, when installed withinequipment fixture point 6 (FIG. 2). To further support forward endflange 58, one or more struts 59 can engage an end cross-section ofequipment 4. Each strut 59 can be decoupled from equipment 4, allowingequipment 4 to be removed from apparatus 2 and system 10. Struts 59 canhave particular lengths for various types of equipment 4, and may beexchanged for struts 59 of different sizes to accommodate differenttypes of equipment 4. Though struts 59 are shown by example in FIGS. 4and 6 as appropriate for use with apparatus 2 and system 10, it isunderstood that struts 59 can also be used in other apparatuses andmethods discussed elsewhere herein.

Turning to FIG. 5, an embodiment of bracket 50 is shown in detail.Bracket 50 can include a bracket body 60, to which other components ofbracket 50 can be connected. Bracket body 60 can be rotatably attachedto equipment support structure 24, allowing bracket 50 to rotate alongarrow J to various orientations. A rotatable member 62, designed toremovably attach equipment 4 (FIGS. 2, 4) can project from bracket body60 at an angle I relative to at least one axis, e.g., axis Z. Rotatablemember 62 can extend partially or completely through bracket body 60 andterminate at a bracket lock 64. Bracket lock 64 can be rotated todifferent orientations along the direction of arrow J, examples of whichare designated in FIG. 5 by phantom lines. Bracket lock 64 can be lockedinto place at a chosen location via inserting a bolt or pin (not shown)through locking mechanisms 66. As demonstrated by example in FIG. 5,locking mechanisms 66 can be in the form of holes configured to accept alocking component (not shown) such as a bolt or pin, thereby preventingfurther rotation. As a result, the orientation of rotatable member 62can be further customized by using locking mechanisms 66 to holdrotatable member 62 at a particular position.

Turning to FIG. 6, an example method of using apparatus 2 or system 10to position (e.g., install or remove) equipment 4 is shown. Equipmentsupport structure 24 can be substantially aligned with equipment fixturepoint 6, which may be located within turbine casing 8. As used herein,the term “substantial alignment” or “substantially aligned” can refer toany alignment by which equipment support structure 24 can be moved toreach equipment fixture point 6. If desired, height adjustable table 20can be moved across scaffold 30 (e.g., via guide track 34) to reach adesired location, and the vertical position of height adjustable table20 can also be adjusted (e.g., with height adjustment mechanism 40). Thevarious components of apparatus 2 and/or system 10, discussed elsewhereherein, can be moved to adjust the positions of platform 22 andequipment support structure 24, thereby allowing apparatus 2 to reach aselected height and a selected angle relative to at least one axis,e.g., axis Z. In addition, the angular orientation of platform 22 andequipment support structure 24 can be adjusted via tilt adjuster 42and/or rotatable coupler 56. A user can then move equipment supportstructure 24 (e.g., with drive mechanism 46 and guide rail 48) acrossplatform 22 to reach equipment fixture point 6. Having been positionedwith apparatus 2 and/or system 10, equipment 4 can be coupled toequipment support structure 24 or equipment fixture point 6. Inaddition, rotatable member 62 (FIG. 5) of bracket 50 (FIG. 5) can berotated about a centerline axis of equipment 4 to adjust the angularorientation of equipment 4 while equipment 4 is being positioned.

Embodiments of a method for positioning of equipment 4 can optionallyinclude further actions. For example, height adjustable table 40 canmove across scaffold 30 (e.g., via guide track 34) with equipment 4being attached thereto. Equipment 4 can be physically removed fromequipment support structure 24 with the aid of an external component(not shown), such as a mechanical arm (e.g., a crane). Adjustable hatch53 can then be opened, and the mechanical arm can pass equipment 4through adjustable hatch 53 along the direction of arrow K. As a result,equipment 4 can be removed from system 10 in a stable and secure manner.It is also understood that the actions discussed herein can be carriedout in a different or reverse order.

Turning to FIG. 7, an apparatus 102 for carrying out a method accordingto an embodiment of the disclosure is shown. Bracket 50 can be coupledto a terminus of a suspended bracket member 120. Suspended bracketmember 120 can be coupled to a mechanical component or device locatedoverhead and coupled to suspended bracket member 120 at support terminus122 via a crane or hoist (not shown). Suspended bracket member 120 mayhave any geometry configured to extend circumferentially about turbinecasing 8 (FIGS. 2, 6) or any similarly large structure. For example,suspended bracket member 120 can be in the form of a “C-hook,” a“J-hook,” or another assembly capable of extending about the surface ofa larger structure, such as turbine casing 8 (FIG. 2). The coupling ofsuspended bracket member 120 at support terminus 122 can permit a userto move suspended bracket member 120 in three dimensions, shown byexample in FIG. 7 along arrows L, M, and N. As described herein,suspended bracket member 120 can have a structure between supportterminus 122 and bracket 50 that wraps around a larger structure orcasing, such as turbine casing 8 (FIGS. 2, 6) as shown and discussedelsewhere herein.

Similar to the embodiment shown and described with reference to FIG. 5,rotatable member 62 can be coupled to bracket 50 and project therefrom.Rotatable member 62 can be rotated along the direction of arrow J to beoriented in various rotational positions, and can be locked into placewith bracket lock 64 (FIG. 5) and locking mechanism 66 (FIG. 5) or anysimilar mechanisms currently known or later developed. Rotatable member62 can thus be rotated along the direction of arrow J to reach variousangular orientations. To accommodate large masses, a counterweight 130can be affixed to bracket 50, and may allow apparatus 102 to supportweights of up to, e.g., one thousand kilograms. It is understood thatbracket 50 and rotatable member 62 can support even greater weights byusing different types of counterweights 130. Counterweights 130 can becomposed of, e.g., lead, sand, water, or other substances capable ofbalancing the weight of equipment 4 to increase stability and control.

Turning to FIG. 8, equipment 4 can be coupled to bracket 50 of suspendedbracket member 120. Counterweight 130 can be affixed to an opposite oroffsetting area of suspended bracket member 120 to balance the load andincrease control over equipment 4 as it moves. If desired, counterweight130 may be affixed to suspended bracket member 120 at approximately thesame time as the coupling of equipment 4 to bracket 50. In addition,counterweight 130 can be removed from suspended bracket member 120 afterequipment 4 has been removed from bracket 50. In an embodiment,equipment 4 can be a component of a gas turbine combustor, such as acombustor connected to a fuel nozzle assembly, as found in complexturbomachines, e.g., a combustor T1 (FIG. 1) with one or more fuelnozzle assemblies T2 (FIG. 1). Rotatable member 62 (FIGS. 5, 7) can alsorotate equipment 4 about its axial centerline axis, allowing equipment 4to be adjusted during the positioning of equipment 4.

As shown in FIG. 9, an apparatus 102 can be used in a method accordingto the present disclosure. Bracket 50 can be substantially aligned withand moved to an equipment fixture point 6 through the use of suspendedbracket member 120. Equipment 4 can be suspended from above withapparatus 102, and coupled to either bracket 50 or equipment fixturepoint 6 to position equipment 4. As a result, equipment 4 can bepositioned at points that would normally be inaccessible to a simplecrane or other conventional overhead device. It is understood thatterminus 122, during the positioning of equipment 4, is connected to anoverhead crane, hoist, or other lift device used to move suspendedbracket member 120. However, this connection is omitted in FIG. 9 forthe purposes of clarity.

In FIG. 10, an apparatus 202, and a system 210 according to anembodiment of the disclosure are shown. Apparatus 202 and system 210 canbe used in methods according to the present disclosure to positionequipment 4. In some embodiments, equipment 4 can be a gas turbinecombustor T1 (FIG. 1) and/or a fuel nozzle assembly T2 (FIG. 1) of aturbine assembly T (FIG. 1).

Generally, scaffold 30 with raised surface 32 and guide track 34 locatedthereon can be used in system 210. Height adjustable table 20 can beslidably connected to and positioned above raised surface 32 of scaffold30, and the capacity for sliding can be provided by height adjustabletable 20 being coupled to guide track 34. Apparatus 202 can also includean arm support structure 222 coupled to and positioned above heightadjustable table 20. A length adjustable arm 224 can be slidablyconnected to arm support structure 222, and thus movable to variousvertical positions. Length adjustable arm 224 can be in the form of amechanical arm such as the “Zero-G®” mechanical arm available fromEquipois, Inc., or a “portable articulating tool support” similar to theinstallation shown and described in U.S. Pat. No. 7,325,777. Bracket 50can be coupled to an end of length adjustable arm 224, and can removablyattach equipment 4. The components of bracket 50 can be substantiallysimilar to those discussed with respect to FIG. 5, such as bracket body60 (FIG. 5), rotatable member 62 (FIG. 5) rotatably coupled to bracketbody 60 (FIG. 5), bracket lock 64 (FIG. 5) with locking mechanism 66(FIG. 5), and/or similar mechanisms currently known or later developed.

In FIG. 11, several types of motion achievable with apparatus 202 andsystem 210 are shown, as indicated by arrows J, O, P, Q, and R. Similarto other embodiments of the disclosure, guide track 34 can allow heightadjustable table 20 to move along the direction of arrow A, heightadjustable members 36 can allow scaffold 30 to move along the directionof arrow B, and height adjustment mechanism 40 can extend or retractheight adjustable table 20 along the direction of arrow C. In anembodiment, length adjustable arm 224 can be coupled to arm supportstructure through an arm support rail 226, allowing length adjustablearm 224 to slide vertically to reach various positions along thedirection of arrow O. In addition, length adjustable arm 224 can belocked into place on arm support rail 226 via mechanical locking devices(not shown) such as latches, pins, etc. Arm support structure 222 canalso be rotatably coupled to height adjustable table 20, and as a resultcan be rotated along the direction of arrow P to adjust the placement oflength adjustable arm 224 and bracket 50. Length adjustable arm 224 canbe further customized by including one or more rotatable joints 228thereon, which as an example can be rotated along the direction of arrowQ to influence the position of bracket 50. Bracket 50 can also berotatably coupled to length adjustable arm 224, and thus rotated alongthe direction of arrow R to adjust the position of rotatable member 62.

FIG. 12 depicts an example method according to an embodiment of thepresent disclosure. A user of apparatus 202 and/or system 210 cansubstantially align bracket 50 of length adjustable arm 224 withequipment fixture point 6. During or following the substantial aligningof bracket 50 with equipment fixture point 6, length adjustable arm 224can be adjusted to have a selected height and a selected angle relativeto a reference level, e.g., the X-Z plane. Bracket 50 can contactequipment fixture point 6, and couple equipment 4 to bracket 50 orequipment fixture point 6, thereby positioning (e.g., installing orremoving) equipment 4. In an embodiment, the method can include movingarm support structure 222 and length adjustable arm 224 across raisedsurface 32 of scaffold 30 via guide track 34. The method can alsooptionally include adjusting the heights of apparatus 202 and system 210via height adjustable members 36. Through rotatable member 62 (FIGS. 5,7, 11), a user can rotate equipment 4 about its centerline axis 51during removal or before installation. In addition, a user can adjustrotatable member 62 without equipment 4 being coupled thereto to adjustthe angular orientation of bracket 50.

The various embodiments discussed in this disclosure can offer severaltechnical and commercial advantages. An advantage obtainable fromembodiments of the present disclosure is the ability to position (e.g.,install or remove) large and heavy components configured for use in aregion inaccessible to conventional mechanical equipment (e.g., cranes).Another advantage realized from embodiments of the present disclosure isthe ability to safely position heavy gas turbine combustors, which as anexample may have a mass of up to, for example, approximately onethousand kilograms. An additional advantage is the ability to move andposition gas turbine combustors which may be coupled to a fuel nozzleassembly.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the disclosure.As used herein, the singular forms “a,” “an” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. It will be further understood that the terms “comprises”and/or “comprising,” when used in this specification, specify thepresence of stated features, integers, steps, operations, elements,and/or components, but do not preclude the presence or addition of oneor more other features, integers, steps, operations, elements,components, and/or groups thereof.

This written description uses examples to disclose the invention,including the best mode, and to enable any person skilled in the art topractice the invention, including making and using any devices orsystems and performing any incorporated methods. The patentable scope ofthe invention is defined by the claims, and may include other examplesthat occur to those skilled in the art. Such other examples are intendedto be within the scope of the claims if they have structural elementsthat do not differ from the literal language of the claims, or if theyinclude equivalent structural elements with insubstantial differencesfrom the literal language of the claims.

What is claimed is:
 1. A method comprising: substantially aligning anequipment support structure with an equipment fixture point of a casingstructure; adjusting the equipment support structure to have a selectedheight and a selected angle; sliding the equipment support structureacross a platform having the selected height and the selected angle toreach the equipment fixture point; and coupling a piece of equipment toone of the equipment support structure and the equipment fixture point.2. The method of claim 1, wherein the substantially aligning includesmoving the equipment support structure across a guide track coupled to ascaffold surface.
 3. The method of claim 2, further comprising: couplingthe piece of equipment to a lift support hoist; and passing the piece ofequipment through an adjustable hatch located on the scaffold surface.4. The method of claim 1, wherein the piece of equipment comprises a gasturbine combustor having a fuel nozzle assembly.
 5. The method of claim1, wherein the adjusting of the equipment support structure includestilting the equipment support structure and the platform.
 6. The methodof claim 1, further comprising rotating the equipment support structureand the platform.
 7. The method of claim 1, further comprising rotatingthe piece of equipment about a centerline axis of the piece ofequipment.
 8. A method comprising: substantially aligning a rotatableequipment support bracket of a suspended bracket member with anequipment fixture point of a casing structure; affixing a counterweightto one of the rotatable equipment support bracket and the suspendedbracket member; moving the rotatable equipment support bracket to aselected rotational position; contacting the equipment fixture pointwith the rotatable equipment support bracket; and coupling a piece ofequipment to one of the rotatable equipment support bracket and theequipment fixture point.
 9. The method of claim 8, wherein the suspendedbracket member comprises one of a C-hook and a J-hook, and the rotatableequipment support bracket is coupled to a terminus of the suspendedbracket member.
 10. The method of claim 9, wherein the substantiallyaligning includes moving the terminus below a turbine casing, and theequipment fixture point is located on the turbine casing.
 11. The methodof claim 8, wherein the piece of equipment comprises a gas turbinecombustor having a fuel nozzle assembly.
 12. The method of claim 8,further comprising rotating the piece of equipment about a centerlineaxis of the piece of equipment.
 13. The method of claim 8, furthercomprising adjusting an angular orientation of the rotatable equipmentsupport bracket.
 14. A method comprising: substantially aligning an arm,having a rotatable equipment support bracket, with an equipment fixturepoint of a casing structure; adjusting the arm to have a selected heightand and a selected angle; contacting the equipment fixture point withthe rotatable equipment support bracket; and coupling a piece ofequipment to one of the rotatable equipment support bracket and theequipment fixture point.
 15. The method of claim 14, wherein thesubstantially aligning comprises moving the arm across a guide trackcoupled to a scaffold surface.
 16. The method of claim 15, furthercomprising adjusting a height of the scaffold surface.
 17. The method ofclaim 14, further comprising rotating the piece of equipment about acenterline axis of the piece of equipment.
 18. The method of claim 14,wherein the piece of equipment comprises a gas turbine combustor havinga fuel nozzle assembly.
 19. The method of claim 14, wherein theadjusting of the arm includes one of sliding the arm relative to an armsupport structure and adjusting the height of a height adjustable tablepositioned beneath the arm.
 20. The method of claim 14, furthercomprising adjusting an angular orientation of the rotatable equipmentsupport bracket.